On Thu, Oct 17, 2024 at 09:34:46PM +0000, Smith, Justin wrote:
> ...and in this case I also have to build the libpng15 from source for the
> virtual environment. After doing that, I can access the Pygwy Console, and I
> can import gwyutils without an immediate error. However, when I try to use gwy
> I have problems. When I try to use the get_min_max() method shown on the
> Python
> Scripting page of the docs, I get an error ("AttributeError: 'module' object
> has no attribute '__file__'"); when I try to check the file path with
> gwy.__file__ I get an error ("AttributeError: 'module' object has no attribute
> '__file__'"). If I print gwyutils.__file__ the output is
> '/home/jds/miniconda3/
> envs/gwyd/share/gwyddion/pygwy/gwyutils.py', so that is working despite the
> fact that gwyutils itself imports gwy.
This is usually caused by missing __init__.py, but it is rarely clear
where, i.e. what module the error refers to. Since gwy itself is a
single-file binary module it should not be causing this.
> Traceback (most recent call last):
> File "runscript.py", line 5, in <module>
> import gwy
> ImportError: /lib/x86_64-linux-gnu/libgtkglext-x11-1.0.so.0: undefined symbol:
> gtk_widget_get_realized
The function should be defined in /lib/x86_64-linux-gnu/libgtk-x11-2.0…
Gwyddion definitely links with GTK+. The function was introduced in GTK+
2.20 and you cannot have GTK+ older than from 2010.
Something might have been linked wrong, and possibly not Gwyddion
itself.
You can try
ldd /lib/x86_64-linux-gnu/libgtkglext-x11-1.0.so.0
to see if all the libraries are resolved. You can also try to run the
standalone script with
LD_PRELOAD=/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0 …
but I suspect that the one undefined symbol would be just the tip of an
iceberg.
Regards,
Yeti
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